4: Connective Tissue

Question 1

3 types of CT proper

Answer 1

loose irregular, dense irregular, dense regular

Question 2

What is amorphous ground substance composed of?

Answer 2

proteoglycans, glycosaminoglycans, and interstitial fluid

Question 3

What is the major cell of CT proper?

Answer 3

fibroblasts

Question 4

What are cells found in CT proper?

Answer 4

fibroblasts, plasma cells, eosinophils, macrophages, mast cells, adipose cells

Question 5

T/F: Fibroblasts can de-differentiate to become other connective tissue cell types

Answer 5

T

Question 6

Where are mast cells most common?

Answer 6

loose CT in skin and intestine

Question 7

What are mast cells rich in?

Answer 7

histamine and heparin

Question 8

Which cells have a wagon wheel or clock appearance?

Answer 8

plasma cells

Question 9

What is the most common fiber?

Answer 9

collagen type I

Question 10

Where are collagen type I fibers found?

Answer 10

dermis, fascia, bone, ligaments, and tendons

Question 11

How are collagen type I fibers organized?

Answer 11

regular or irregular arranged bundles and layers in dense CT

Question 12

Procollagen

Answer 12

made and secreted by fibroblasts

Question 13

What does procollagen cross link with?

Answer 13

tropocollagen

Question 14

What fibers are seen with a silver stain?

Answer 14

reticular fibers

Question 15

Which fibers look like a fragile lattice?

Answer 15

reticular fibers

Question 16

What collagen type do reticular fibers contain?

Answer 16

type III collagen

Question 17

Where are elastic fibers located?

Answer 17

vocal cords, epiglottis, lungs, aorta, dermis

Question 18

What protein do elastic fibers contain?

Answer 18

elastin